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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 29, 2025
Topics: 17 / Replies: 2081
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RE: A Beginner's Guide to ASHP Monitoring

Thank you all for your comments. A significant amount of my time is very pertinent, I have already spent many hours on this, which I am happy to do (i...

3 years ago
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RE: A Beginner's Guide to ASHP Monitoring

Thank you all very much for your input. I think I am approaching the point where I am ready to start getting some hardware, and starting some monito...

3 years ago
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RE: Rate the quality of your heat pump design and installation

I've just tried temporarily increasing the warm end of the weather comp curve by ten degrees. Flow rate effectively remained unchanged, at 1.41 to 1.4...

3 years ago
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RE: Looking for reference sites and installer recommendations

I know that Evergreen and Homely are one and the same, what I wanted to be sure about is whether @jswhite's Evergreen are one and the same. I think we...

3 years ago
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RE: Looking for reference sites and installer recommendations

This is a huge factor these days, and heating, of rather lack of it because of unaffordability, is a health problem too. But there is no getting round...

3 years ago
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RE: Looking for reference sites and installer recommendations

I have to suggest that, while anecdotally there may be accounts that suggest this is the case, in fact it is a myth. We need to separate fact from f...

3 years ago
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RE: Rate the quality of your heat pump design and installation

@derek-m - if I read the table on that page correctly, the default setting for S2 positions 3 and 3 is 11 ie on/on which equals variable speed Wilo (p...

3 years ago
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RE: A Beginner's Guide to ASHP Monitoring

@morgan - one reason I called this post 'A Beginner's Guide' is to remind me to keep it as accessible as possible. I'll try to put together a glossary...

3 years ago
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RE: Rate the quality of your heat pump design and installation

I get the impression this is what is supposed to happen, but looking at the Midea Operational Parameters, the flow rate seems to favour around 1.4 m^3...

3 years ago
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RE: Rate the quality of your heat pump design and installation

I think you did a remarkable job of condensing many years of experience into a single sentence, but at the same time, I am also aware that in an ideal...

3 years ago
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RE: A Beginner's Guide to ASHP Monitoring

Indeed, see my comment elsewhere (<=link). I particularly like the 'modbus hat for a raspberry pi', it's absolutely brilliant. I will endeavour to ...

3 years ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?

I hadn't, but now I have! Interestingly, this is the tightest of all the scatter plots. If I do it as a linear plot, R2 = 0.9507. Need to bear in ...

3 years ago
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